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Contract OI history

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Oct 23, 2026 EXPIRATION

BTU $20.50 Put

BTU261023P00020500

Latest saved OI303Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BTU $20.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3061530 2026-10-02: 0 OI2026-10-05: 9 OI2026-10-06: 9 OI2026-10-07: 21 OI2026-10-08: 21 OI2026-10-09: 25 OI2026-10-13: 24 OI2026-10-14: 24 OI2026-10-15: 303 OI2026-10-16: 306 OI2026-10-20: 306 OI2026-10-23: 303 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BTU contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing303-3
Oct 20, 20263060
Oct 16, 2026306+3
Oct 15, 2026303+279
Oct 14, 2026240
Oct 13, 202624-1
Oct 09, 202625+4
Oct 08, 2026210
Oct 07, 202621+12
Oct 06, 202690
Oct 05, 20269+9
Oct 02, 20260No prior observation